Raman Scattering cross section of Spin Ladders

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The Raman scattering spectra from magnetic excitations in an antiferromagnetic spin-1/2 two leg ladder is investigated for weak and strong interladder coupling. In the first case, a cusp in the Raman intensityis obtained at a frequency twice the gap. In the second case, a peak at twice the gap replaces the cusp. We discuss the relevance of our calculation to recent experiments on CaV2O5 and Sr14Cu24O41.
RevTeX, 4 pages, 2 EPS Figures

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Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/16051

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0002257
 http://arxiv.org/abs/cond-mat/0002257
 Phys. Rev. B 62 p. 8622 (2000)
 doi:10.1103/PhysRevB.62.8622

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arXiv